#include "cgi_utils.hpp"

std::string	trim(std::string str, char del)
{
	size_t	pos;

	// delete leadings del
	pos = str.find_first_not_of(del);
	if (pos == NPOS)
		pos = str.size();
	str = str.substr(pos);

	// delete trailing del
	pos = str.find_last_not_of(del);
	if (pos != NPOS)
		str = str.substr(0, pos + 1);

	return str;
}

std::vector<std::string>
	split(const std::string & input, std::string delim, char ctrim)
{
	std::vector<std::string>	split_str;
	std::string					tmp;
	size_t						start = 0;
	size_t						end = 0;
	size_t						len = 0;

	while (end != NPOS)
	{
		end = input.find(delim, start);
		len = end - start;
		if (end == NPOS)
			len = end;
		tmp = input.substr(start, len);
		if (ctrim != '\0')
			tmp = trim(tmp, ctrim);
		if (tmp.size() != 0)
			split_str.push_back( tmp );
		start = end + delim.size();
	}
	return split_str;
}

std::string	itos(int n)
{
	std::stringstream	strs;

	strs << n;
	return ( strs.str() );
}

std::string	parse_env(const std::string & env)
{
	std::string ret = "";
	char *		ret_env;

	ret_env = getenv(env.c_str());
	if (ret_env != NULL)
		ret = ret_env;

	return ret;
}

std::string	parse_body()
{
	std::string	ret;

	std::cin >> ret;
	return ret;
}

std::string print_env(char **env, std::string tag)
{
	std::string	ret = "";

	for (int i = 0; env[i] != NULL; ++i)
	{
		ret += "<" + tag + ">";
		ret += env[i];
		ret += "</" + tag + "><br>";
	}
	return ret;
}

std::string
	print_form(std::string form, std::string tag_key, std::string tag_val)
{
	std::vector<std::string>                    split_str;
	std::vector<std::string>                    sub_split_str;
	std::vector<std::string>::const_iterator    it;
	std::string									ret = "";

	split_str = split(form, "&");
	for (it = split_str.begin(); it != split_str.end(); ++it)
	{
		sub_split_str = split(*it, "=");
		ret += "<br><" + tag_key + ">" + sub_split_str[0] + ": </" + tag_key + ">";
		ret += "<" + tag_val + ">" + sub_split_str[1] + "</" + tag_val + ">";
	}
	return ret;
}